- panic_on_stackoverflow
- panic_on_unrecovered_nmi
- panic_on_warn
+- panic_print
- panic_on_rcu_stall
- perf_cpu_time_max_percent
- perf_event_paranoid
- stop-a [ SPARC only ]
- sysrq ==> Documentation/admin-guide/sysrq.rst
- sysctl_writes_strict
-- tainted
+- tainted ==> Documentation/admin-guide/tainted-kernels.rst
- threads-max
- unknown_nmi_panic
- watchdog
==============================================================
+panic_print:
+
+Bitmask for printing system info when panic happens. User can chose
+combination of the following bits:
+
+bit 0: print all tasks info
+bit 1: print system memory info
+bit 2: print timer info
+bit 3: print locks info if CONFIG_LOCKDEP is on
+bit 4: print ftrace buffer
+
+So for example to print tasks and memory info on panic, user can:
+ echo 3 > /proc/sys/kernel/panic_print
+
+==============================================================
+
panic_on_rcu_stall:
When set to 1, calls panic() after RCU stall detection messages. This
1: kernel stack erasing is enabled (default), it is performed before
returning to the userspace at the end of syscalls.
-
==============================================================
-tainted:
+tainted
Non-zero if the kernel has been tainted. Numeric values, which can be
ORed together. The letters are seen in "Tainted" line of Oops reports.
- 1 (P): A module with a non-GPL license has been loaded, this
- includes modules with no license.
- Set by modutils >= 2.4.9 and module-init-tools.
- 2 (F): A module was force loaded by insmod -f.
- Set by modutils >= 2.4.9 and module-init-tools.
- 4 (S): Unsafe SMP processors: SMP with CPUs not designed for SMP.
- 8 (R): A module was forcibly unloaded from the system by rmmod -f.
- 16 (M): A hardware machine check error occurred on the system.
- 32 (B): A bad page was discovered on the system.
- 64 (U): The user has asked that the system be marked "tainted". This
- could be because they are running software that directly modifies
- the hardware, or for other reasons.
- 128 (D): The system has died.
- 256 (A): The ACPI DSDT has been overridden with one supplied by the user
- instead of using the one provided by the hardware.
- 512 (W): A kernel warning has occurred.
- 1024 (C): A module from drivers/staging was loaded.
- 2048 (I): The system is working around a severe firmware bug.
- 4096 (O): An out-of-tree module has been loaded.
- 8192 (E): An unsigned module has been loaded in a kernel supporting module
- signature.
- 16384 (L): A soft lockup has previously occurred on the system.
- 32768 (K): The kernel has been live patched.
- 65536 (X): Auxiliary taint, defined and used by for distros.
-131072 (T): The kernel was built with the struct randomization plugin.
+ 1 (P): proprietary module was loaded
+ 2 (F): module was force loaded
+ 4 (S): SMP kernel oops on an officially SMP incapable processor
+ 8 (R): module was force unloaded
+ 16 (M): processor reported a Machine Check Exception (MCE)
+ 32 (B): bad page referenced or some unexpected page flags
+ 64 (U): taint requested by userspace application
+ 128 (D): kernel died recently, i.e. there was an OOPS or BUG
+ 256 (A): an ACPI table was overridden by user
+ 512 (W): kernel issued warning
+ 1024 (C): staging driver was loaded
+ 2048 (I): workaround for bug in platform firmware applied
+ 4096 (O): externally-built ("out-of-tree") module was loaded
+ 8192 (E): unsigned module was loaded
+ 16384 (L): soft lockup occurred
+ 32768 (K): kernel has been live patched
+ 65536 (X): Auxiliary taint, defined and used by for distros
+131072 (T): The kernel was built with the struct randomization plugin
+
+See Documentation/admin-guide/tainted-kernels.rst for more information.
==============================================================
git.samba.org / sfrench / cifs-2.6.git / blobdiff